What CO Means
CO is not a fault. The use and care manual for Frigidaire dehumidifiers such as the FFAD2233W1 explains that CO is shown when the unit is operating in continuous mode instead of displaying a humidity reading.
Common Causes of CO
- Continuous mode selected
- Humidity setting lowered below the adjustable range
🔧 One Safe Check You Can Try
No repair is needed. If you want the unit to stop at a target humidity, change the humidity setting from continuous back to a specific level using the controls described in your manual.
⚠ Why You Shouldn't Go Further Than That
- None — CO is a normal status display, not a malfunction.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.